package demo4;
import java.util.*;
/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 石方旭
 * Date: 2022-06-29
 * Time: 20:04
 */
public class TestDemo {

    public static void main(String[] args) {
        Deque<Integer> deque = new LinkedList<>();

    }

}
